Latest figures from Network Rail show there are 1,431 spaces for bikes at its 11 central London stations. Well over half of the spaces are located at three of these - King's Cross, Paddington and Euston.
Three others, Cannon Street, Charing Cross and Fenchurch Street - used by more than 200,000 passengers a day - cannot muster a single bike rack.
Of London's 50 busiest stations, 16 have no cycling facilities.
Britain's busiest station, Waterloo - the end or start point for more than a quarter of a million daily journeys - has just 210 spaces.
Hazel Stevenson, a 25-year-old PR worker, who cycles to Charing Cross station, said: "It is frustrating not being able to find bike racks in London. They're never in sensible places and there are never enough. I have been to Amsterdam a few times and there it is totally different. I suppose that's something to do with our view of cycling, it is always an afterthought."